x^2+2x-4=3x-8

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Solution for x^2+2x-4=3x-8 equation:


Simplifying
x2 + 2x + -4 = 3x + -8

Reorder the terms:
-4 + 2x + x2 = 3x + -8

Reorder the terms:
-4 + 2x + x2 = -8 + 3x

Solving
-4 + 2x + x2 = -8 + 3x

Solving for variable 'x'.

Reorder the terms:
-4 + 8 + 2x + -3x + x2 = -8 + 3x + 8 + -3x

Combine like terms: -4 + 8 = 4
4 + 2x + -3x + x2 = -8 + 3x + 8 + -3x

Combine like terms: 2x + -3x = -1x
4 + -1x + x2 = -8 + 3x + 8 + -3x

Reorder the terms:
4 + -1x + x2 = -8 + 8 + 3x + -3x

Combine like terms: -8 + 8 = 0
4 + -1x + x2 = 0 + 3x + -3x
4 + -1x + x2 = 3x + -3x

Combine like terms: 3x + -3x = 0
4 + -1x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '-4' to each side of the equation.
4 + -1x + -4 + x2 = 0 + -4

Reorder the terms:
4 + -4 + -1x + x2 = 0 + -4

Combine like terms: 4 + -4 = 0
0 + -1x + x2 = 0 + -4
-1x + x2 = 0 + -4

Combine like terms: 0 + -4 = -4
-1x + x2 = -4

The x term is -1x.  Take half its coefficient (-0.5).
Square it (0.25) and add it to both sides.

Add '0.25' to each side of the equation.
-1x + 0.25 + x2 = -4 + 0.25

Reorder the terms:
0.25 + -1x + x2 = -4 + 0.25

Combine like terms: -4 + 0.25 = -3.75
0.25 + -1x + x2 = -3.75

Factor a perfect square on the left side:
(x + -0.5)(x + -0.5) = -3.75

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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